<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        body{
            font-size: 26.666667vw;
        }
        .head{
            width: 1.44rem;
            height: 1.44rem;
            background: red;
        }
        .foot{
            width: 2rem;
            margin: 3rem;
            background: blue;
        }
    </style>
</head>
<body>
    <div class="heade"></div>
</body>
</html>